/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.analysys.presto.connector.hbase.optimization;

import java.util.Objects;

/**
 * Adaptive Module.
 * @author luo
 */
public class StartEndKey
{
    private String start;
    private String end;

    public StartEndKey(String start, String end)
    {
        this.start = start;
        this.end = end;
    }

    public StartEndKey()
    {
        this("", "");
    }

    public String getStart()
    {
        return this.start;
    }

    public String getEnd()
    {
        return this.end;
    }

    public static StartEndKey ofNull()
    {
        return new StartEndKey();
    }

    public boolean isNull()
    {
        return start.isEmpty() && end.isEmpty();
    }

    @Override
    public String toString()
    {
        return "StartEndKey{" +
                "start=" + start +
                ", end=" + end +
                '}';
    }

    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        StartEndKey that = (StartEndKey) o;
        return Objects.equals(this.start, that.start) &&
                Objects.equals(this.end, that.end);
    }
}
